I got the AC on full blast and the room feels cold enough that I need a blanket. So how come every thermometer says the room is at 25C/77F?

Question

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In: Other

Answer 1

You don’t sense ambient temperature, you sense the rate at which heat escapes or enters your body, which is done in 3 ways:

* Convection: When a gas or liquid flows across your skin, like a cool breeze
* Conduction: When something is directly placed on your skin, think of touching your hot steering wheel
* Radiation: When infrared radiation travels space and heats up your skin. Think standing outside on a sunny day when it’s 80°F outside, and you still feel warm

When the AC is on full blast, blowing at you, it’s carrying heat away from you through convection; the things inside your house are cooled down to 77°, so it radiates very little heat.